In this thread I will present the widely used Cree SC5 based LED emitter line-up (3 V class currently), presented to the public in 2012 to 2014. My goal is to establish a single-post resource for raw data and other important values and measurements of these older LEDs, including the well-known over current diagrams.

If new results are available I'll update this post(s). Luminance results of all emitters shown here will follow soon. Raw data are also available in this post!

I'm not sure if these emitters are suitable for clear optics or dedoming.

At first glance they seem to be similar designed to the new Cree platform (XP-G3, XP-L2), with known disadvantages in color uniformity if used in conjunction with clear optics (lenses / reflectors).

Actually after very stressful last weeks I have now some free time to publish some upcoming tests and I could test also these (new?) emitters. I would very happy if someone of you send me some of them (both CCTs) for testing.

At first glance they seem to be similar designed to the new Cree platform (XP-G3, XP-L2), with known disadvantages in color uniformity if used in conjunction with clear optics (lenses / reflectors).

Actually after very stressful last weeks I have now some free time to publish some upcoming tests and I could test also these (new?) emitters. I would very happy if someone of you send me some of them (both CCTs) for testing.

Does that mean throw improvement would suck when dedomed?

Some of these emitters are dedoming bitches for a reason or the other. Already killed 3 XHP50As, tried the razor blade plus fine grit sanding method, but the later procedure messes up or kills the bond wires unless you do it slowly and geeeeently. In fact, I believe the sanding thing is sort of unnecessary.

With regards to getting someone to send you the aforementioned emitters, I can honestly say even that trifle would make me a bit nervous right now. But I'll drop a line somewhere.

Unfortunately, it might be so. Unlike earlier SC5 based emitters the mentioned XP-G3 / XP-L2 has a much bigger die size because of sideways lighted LES (light emitting surface) which has a negeative impact at luminance - even in dedomed state. More informations about this here.

From quick look at first (blurry) pictures I would estimate the die size of XP-E HEW could somewhere in the range of dedomed XP-G2 or domed XP-E2, which means 1,7 to 2,4 mm². I don't think that the dedomed XP-E HEW have the same die size of dedomed 'classic' XP-E / XP-E2.

Barkuti wrote:

In fact, I believe the sanding thing is sort of unnecessary.

I never sanded my emitters after shaving. I used the razor and that's it. (But if possible, I consider the classic 'full' dedoming which is more considerable for maximum luminance and therefore throw.)

Barkuti wrote:

With regards to getting someone to send you the aforementioned emitters